Function: 1X30 Red/Green Dot With RIS Rails,20mm rails on the sides for mounting RMR sights or other accessories

fit for: 20mm Picatinny Rail

Magnifier: 1x

Objective lens: 30mm

Eyepiece: 25mm 

Material: aluminum

Dot Color: Red/Green

Brightness level: 5 levels

Zero value: 1 MOA

Field of view: 52 ' at 100 yards

Parallax: Parallax Free

Battery type: 1x Cr2032

Length: 115mm

Coating of the multi-layer lens.